Gin-brush.



F. P. WORTMAN.

GIN BRUSH.

APPLICATION FILED OUT. 28, 1912.

Patented Aug; 5, 1913.

m L44 w v m a w a M w W; PW W 4 M M w vbweooeo FFICE FREDERICK P.WORTMAN, 0F ALBANY, GEORGIA.

GIN -BRUSH.

Specification of Letters Patent.

Patented Aug. 5,1913.

Application filed October 28, 1912. Serial No. 728,174.

To all whom, it may concern:

Be itknown that I, FREDERICK P. WVoR'r- MAN, a citizen of the UnitedStates, residing at Albany, in the county of Dougherty and State ofGeorgia, have invented certain new and useful Improvements in Gin-Brushes, of which the following is a specification.

My invention relates to gin brushes of the class in which the tufts ofbristles are secured to brush bars arranged on the periphery of a drumcarried by a driving shaft, which includes the linter brush used incotton oil mills, and the object of my invention is to provide brushbars of improved construction which permit of the tufts of bristlesbeing secured to them after they are attached to the drum and which alsoallow worn tufts to be removed and replaced by new ones, withoutremoving the bars from the drum.

In carrying out my invention, I employ a drum of suitable constructionwhich is supported on a driving shaft in any suitable way, and on theperiphery of the drum I arrange brush bars made of sheet metal,

having outer portions or heads formed on their outer faces withtuft-receiving holes and near their bases with a series of holes toreceive the cord or wire which fastens the tufts to the bars. Theconstruction is such that the tufts of bristles may be attached to thebars after the latter are firmly attached to the drum and a new row oftufts or any desired number of tufts may be quickly removed from a barand replaced without disturbing any of the other bars or any other partsof the brush.

In the accompanying drawings :Figure 1 shows a longitudinal centralsection through a gin brush embodying my improvements. Fig. 2 shows across section thereof. Fig. 3 is a perspective view of a portion of oneof the brush bars embodying my improvements, and illustrates how thetufts are attached to the bars.

The cylinder A of the drum is preferably made of sheet metal and issupported on the driving shaft B by heads C which are also preferably ofsheet metal, pressed into shape and formed with peripheral flanges c andcentral flanges 0 around the shaft openin s.

I may use any suitable number of intermediate disks D, flanged at (Z, (Zto support the cylinder and strengthen the drum.

The cylinder A may be attached to the heads C and the intermediate disksD in any suitable way, and the heads and disks may be secured to thedriving shaft in the manner shown, or in any other suitable manner.

A drum thus constructed is very strong and durable. It will maintainperfect balance under all atmospheric and other conditions, and affordsan efficient support for my improved brush bars. These bars E arepreferably made of sheet metal bent in the manner shown in Fig. 3. Eachbar preferably comprises a body portion 6 of double thickness, flangedto provide foot portions 6' and bent to form a head F adapted to receiveand support the inner ends of the tufts of bristles Gr.

The head F of each bar has an outer face f preferably flat formed with aseries of holes f and said head has, near its base a series of holes y.The holes f are of suflicient size to receive the inner or looped endsof the tufts and the holes f receive the cord, wire or similar means Hfor securing the bristles to the bar.

The way in which the tufts are attached to the bar is illustrated inFig. 3. The cord H is looped, as shown, and drawn through the holes f fby a suitable tool, such as a darning needle, and the tufts of bristlesare passed through the loops in the manner shown; then the loops aredrawn into the head and with them the tufts, the inner or looped ends ofthe tufts entering the chamber X of the head and being firmly heldtherein. All the tufts are in like manner attached to the brush bar andthe ends of the cord are secured in any suitable way.

It is obvious that wire may be used instead of cord, and if preferredeach tuft may be attached by a separate cord or wire.

The exact shape of the head F shown is not essential as the shape may besomewhat varied, but it is essential that the head should have openingson its outer face to receive the tufts and other openings in the side ofthe head or near the base thereof to receive the cord or wire.

The brush bars may be attached to the drum by rivets, bolts or othersuch devices or by electric welding (spot welding) and the bristles maybe attached to the bars either before or after the bars are attached tothe drum but after the bars are once attached to the drum it is notnecessary to remove them in order to replace the bristles as this can bevery quickly and easily done as is obvious from an inspection of thedrawing and a consideration of the foregoing specification Withoutdisturbing the bars.

Ordinarily much time is involved in the renewing of gin brushes, as thebristles Wear out very quickly. Heretofore it has been the custom toremove each brush bar from the drum to replace the bristles as the cordor Wire which fastens the bristles to the bar has usually been beneathor Within the foot or base of the bar.

I claim as my invention:

1. A gin brush, comprising a drum and brush bars secured thereto eachcomprising a body portion and a head formed with tuftrcceiviug holes onits outer face, cord-r eeeiving holes near its base, and tuft seatsbetween the cord-receiving holes and the outer face of the head, tuftsextending into the tuft-receiving holes and resting at their inner endson the tuft seats, and cords extending through the cord-receiving holes,engaging the tufts and drawing them inward against their seats.

A. brush bar for gin brushes made of sheet metal bent to form a footportion adapted to be attached to a brush drum and a head portion havinga chamber to receive the looped ends of the tufts, having tuft-receivingholes on its outer face and cord-re ceiving holes near its base.

3. A. brush bar for gin brushes made of sheet metal bent to form a bodyportion and a head portion having a chamber to receive the looped endsof the tufts having tuft-re ceiving holes on its outer face andcord-receiving holes near the base of the head but above the bodyportion.

In testimony whereof, I have hereunto subscribed my name.

FREDERICK P. WORTMAN. lVitnesses F. B. BRooKs, ED. HANNEoK.

Copies of this patent may be obtained. for five cents each, byaddressing the Commissioner of Patents, Washington, 3). C.

